Mathematics J.S.S 2 Second Term

Theme: Algebraic Processes

WEEK 2

Algebraic Expressions

Performance Objectives

Student should be able to:

1. Apply use of quadratic equation box in expanding and factorizing algebraic expressions.
2. Solve quantitative reasoning problem

Expansions Leading to Quadratic Expressions

Content

A quadratic expression is one in which 2 is the highest power of the unknown(s) in the expression. For example, x² – 4x – 12, 16 – a², 3x² + 17xy + 10y² are all quadratic expressions.

Example:

Expand: (a) (a + 3) (a – 4)

    (b) (2x + 3) (4x – 5)

Solution:

1.    (a + 3) (a – 4)

      =a (a –.... View More